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杜邦Elvax® 3200-2是一种可挤出的蜡改性乙烯-醋酸乙烯共聚物树脂,以颗粒形式提供,用于处理聚乙烯树脂的常规挤出设备。成分22.5%(按重量计),醋酸乙烯共聚单体含量,蜡热稳定剂:BHT防老剂应用。该树脂旨在为其自身或许多其他软包装应用中常用的材料提供低温热密封。该树脂的熔融特性使其能够在挤出涂层设备上以各种线速度和涂层厚度进行加工。它也可以与多种其他聚合物共挤出涂层。该树脂通常用作各种成型容器的盖封密封剂,以取代溶剂型热封漆。它可以很好地密封高密度聚乙烯薄膜和片材,聚丙烯薄膜,聚偏二氯乙烯,硬质乙烯基,硬质和泡沫聚苯乙烯,以及硝化纤维涂层。ELVAX3200-2将提供低温热密封。实际的热封起始温度、密封范围和极限密封强度将取决于诸如涂层结构、厚度、基底类型、结构的热导率、热封设备类型、最终使用环境等变量。由于热密封性能的定量描述只能针对特定应用确定,因此必须对每个特定应用评估热密封性能。但是,为了比较热封起始温度,可以考虑每个ELVAX树脂的VICAT温度。 DuPont™ Elvax® 3200-2 is an extrudable, wax modified, ethylene-vinyl acetate copolymer resin available in pellet form for use in conventional extrusion equipment designed to process polyethylene resins. Composition 22.5 % By Weight Vinyl Acetate comonomer content Wax Thermal Stabilizer: BHT antioxidant Applications This resin is designed to provide a low temperature heat seal to itself or many other materials commonly used in flexible packaging applications. The melt properties of this resin allow it to be processed on extrusion coating equipment over a wide range of line speeds and coating thicknesses. It can also be coextrusion coated with a variety of other polymers. This resin is typically used as a lidding sealant for a variety of formed containers, in replacement of solvent applied heat seal lacquers. It will provide a good seal against HDPE film and sheet, polypropylene film, PVDC, rigid vinyl, rigid and foamed polystyrene, and nitrocellulose coatings. Elvax®3200-2 will provide a low-temperature heat seal. The actual heat seal initiation temperature, sealing range, and ultimate seal strength will depend on variables such as coating structure, thickness, substrate type, thermal conductivity of structure, type of heat sealing equipment, end-use environment, and many others. Because a quantitative description of heat seal performance can only be determined for a given application, it is imperative that heat seal properties be evaluated for each specific application. However, for a relative comparison of heat seal initiation temperatures, the Vicat temperature of each Elvax® resin can be considered. |
技术参数 Technical Data | |||
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物理性能 PHYSICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
密度 Density |
0.940 | g/cm³ | ASTM D792 |
密度 Density |
0.940 | g/cm³ | ISO 1183 |
熔体质量流动速率 Melt Flow Rate |
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190℃,2.16kg 190℃,2.16kg |
32 | g/10min | ASTM D1238 |
190℃,2.16kg 190℃,2.16kg |
32 | g/10min | ISO 1133 |
醋酸乙烯含量 Vinyl acetate content |
22.5 | wt% | |
热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
维卡软化温度 Vicat Softening Temp |
℃ | ASTM D1525 | |
维卡软化温度 Vicat Softening Temp |
℃ | ISO 306 | |
熔融峰值温度 Melting peak temperature |
℃ | ASTM D3418 | |
熔融温度 Melting temperature |
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DSC DSC |
℃ | ISO 3146 | |
冰点 freezing point 2 |
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℃ | ISO 3146 | |
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℃ | ASTM D3418 |
备注 |
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1 一般属性:这些不能被视为规格。 |
2 DSC |
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